Random House Webster's College Thesaurus

It's Comprehensive:
You'll find synonyms for terms like wannabe, soi-distant, laid-back, kvetch, yo-yo, zaftig, and x-rated.
You'll gain insights into words like agita, ASAP, attrite, bloviate, bodice, ripper, dis, and hot-button, all discussed in a brand-new essay on the burgeoning vocabulary of the Nineties and beyond.
You'll explore the more than 12,000 main entries, with their synonym and antonym lists offering over 400,000 word choices.

It's the Easiest Thesaurus to Use:
All the main entries are in simple A- Z listing.
Thousands of example sentences show you an appropriate context for each meaning of each main entry term.
The Thumb Index helps you find your way quickly to the word you're looking for.

It's Authoritative:
Synonym and antonym lists cover all levels of vocabulary, from formal to slang.
This reliable reference is recommended for students, writers, public speakers, and business people.